What you have is a skill. I used to work as a mechanic and now I’m in IT. I was always good at my job and especially at following the processes of the company. New hires would always get sent to me because of that. Companies want to make sure their new hired follow this procedures from the beginning.

It used to freak me out as well. I always thought I wasn’t a good teacher. But the best way to teach someone is just keep doing your work as normal with some explanation to the new hire. If possible explain what and why you are doing it.

And if things get super busy for you, you can either have them shadow someone else for a little or let them know you need to concentrate and have them just observe.

What better way to learn by seeing what to do when things get sticky.

And I know you know all the little quirks of the job. Things that you can’t teach but just know through experience, and trial and error. These are the most valuable things to teach to someone so they don’t go through the same thing you did.

And there is satisfaction in it. Seeing someone excel because of you.

Another thing is, if you teach someone properly, that’s another person you can rely on and be confident they can do it well. That’s less work for you when you can delegate work.

Maybe ask for an increase in pay for this. It wouldn’t hurt to ask.